p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

usb: musb: tusb6010_omap: Use one musb_ep_select call in tusb_omap_dma_program 

Having one musb_ep_select() instead the two calls in if/else is the same
thing, but makes the code a bit simpler to follow.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Ujfalusi 2017-06-16 10:40:58 -05:00 committed by Greg Kroah-Hartman
parent 0efc135639
commit 3565b787fd
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/usb/musb/tusb6010_omap.c
View File

@ -368,15 +368,14 @@ static int tusb_omap_dma_program(struct dma_channel *channel, u16 packet_sz,
/*
* Prepare MUSB for DMA transfer
*/
if (chdat->tx) {
musb_ep_select(mbase, chdat->epnum);
if (chdat->tx) {
csr = musb_readw(hw_ep->regs, MUSB_TXCSR);
csr |= (MUSB_TXCSR_AUTOSET | MUSB_TXCSR_DMAENAB
| MUSB_TXCSR_DMAMODE | MUSB_TXCSR_MODE);
csr &= ~MUSB_TXCSR_P_UNDERRUN;
musb_writew(hw_ep->regs, MUSB_TXCSR, csr);
} else {
musb_ep_select(mbase, chdat->epnum);
csr = musb_readw(hw_ep->regs, MUSB_RXCSR);
csr |= MUSB_RXCSR_DMAENAB;
csr &= ~(MUSB_RXCSR_AUTOCLEAR | MUSB_RXCSR_DMAMODE);